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pypm install slc.aggregation

How to install slc.aggregation

  1. Download and install ActivePython
  2. Open Command Prompt
  3. Type pypm install slc.aggregation
 Python 2.7Python 3.2Python 3.3
Windows (32-bit)
1.3 Available View build log
Windows (64-bit)
1.3 Available View build log
Mac OS X (10.5+)
1.3 Available View build log
Linux (32-bit)
1.3 Available View build log
Linux (64-bit)
1.3 Available View build log
Lastest release
version 1.3 on Jan 5th, 2011


This product provides an aggregation solution for our specific environment.

What makes our environment relatively unique?

The fact that almost all content must be available in more than 20 languages. In addition to that, content distributed over various subsites, each with it's own news and events folders and various other duplications.

Inevitably, a lot of content duplication results, as News Items are located all over the place and content creators are not aware of their existence.

slc.aggregation is therefore part of our Resource Centralisation strategy.

You could use Collections/Topics, but they have some flaws when it comes to a multiple language environment. For example, each Collection we add, needs to be translated into about 22 languages.

This product therefore adds a new aggregation mechanism, for use in sites with many language versions.

How to use:

A new subtype 'Aggregator' is created in descriptors.py and it can be applied to all Folders in the Site.

When browsing in Plone, you will see that there is a 'subtypes' menu visible in the folder actions bar.

You can click on this menu and then choose 'Aggregator' to change your folder into an aggregator.

On reload, the Folder will now have a new view, with nothing in it, because nothing is yet aggregated. You will notice a new object tab labeled 'Aggregation'. You can click on it, and find the form for configuring you aggregator.

The values you specify will basically be used to construct a catalog query, that fetches the objects for you.

If correctly configured, your folder's view should now show a batched listing of the aggregated objects.

Known Issues:

To use the aggregator in a multi-language site, you have to subtype all the translations of a folder.

Since subtyping doesn't take translations into account, this has to be done manually.

We will eventually release a product called slc.linguatools, that would among other things allow you to subtype multiple translations simultaneously.


  • p4a.common
  • p4a.z2utils
  • p4a.subtyper
  • archetypes.schemaextender
  • Products.AdvancedQuery


1.2 - (2009-11-17)
  • Render the body text instead of the description if the aggregated object is a HelpCenterFAQFolder (jcbrand)
  • Fixed a bug while parsing the form request in browser/aggregator.py (jcbrand)
1.2 - (2009-11-17)
  • Register a new descriptor for PloneHelpCenterFAQFolder (jcbrand)
  • Autoinclude zcml via z3c.autoinclude.plugin (jcbrand)
1.1 - (2009-10-21)
  • Add a new form field 'restrict_language' to make language specific aggregation of items optional. (jcbrand)
  • Add a helpful message when the aggregator returns no results. (jcbrand)
1.0 - (2009-10-08)
  • Bumped version to correspond to metadata.xml (jcbrand)
  • Fixed a bug in query_results when no annotations has been set. (jcbrand)
0.1 - (2009-10-08)
  • Initial release

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Last updated Jan 5th, 2011

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Last month:3

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